I posted this idea in the Steam forums and it got some pretty good reviews.

When you highlight something in the crafting menu (i.e. a weapon) or in the construction menu (i.e. a house), can a tooltip pop up next to the cusor to tell what level or materials are required to build/use/equip the said item?

This would save people time and resources if they waste them on building an item and cant even equip it. Just a simple pop up tooltip like the item info that appears in the inventory when highlighted.